SOLUTION: I'm some problems with my algebra lesson. It's systems of equations. I am suppose to figure out if the ordered pair of (8,-1) is a solution to the systems: 2x + 3y = 13 and x - y =
Algebra.Com
Question 330867: I'm some problems with my algebra lesson. It's systems of equations. I am suppose to figure out if the ordered pair of (8,-1) is a solution to the systems: 2x + 3y = 13 and x - y = 19. I know how to do this, just not with this problem. On the second equation I am confused as to what the x and the y are supposed to be, number wise. What do I do with the x and y when there is no other number?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
I am suppose to figure out if the ordered pair of (8,-1) is a solution to the systems: 2x + 3y = 13 and x - y = 19. I know how to do this, just not with this problem. On the second equation I am confused as to what the x and the y are supposed to be, number wise. What do I do with the x and y when there is no other number?
-----------------
Sub 8 for x and -1 for y, and see if the equations are true.
2x + 3y = 13
2*8 + 3(-1) =? 13
16 - 3 = 13 That one is true.
------------------
x - y = 19
8 - (-1) =? 19
9 <> 19 so it's not a solution to the 2nd equation.
If you graph these, the point (8,-1) is on the line of the 1st eqn, but not on the 2nd.
RELATED QUESTIONS
I'm having trouble with these problems. The directions say to Determine whether the given (answered by music974)
I am suppose to solve the following solution of the following system of linear equations... (answered by Alan3354)
Ok, I am taking a high school algebra class and am really struggling with this lesson.... (answered by stanbon,jim_thompson5910)
Hello this is my problem, I am a student in algebra 1, Introductory and Intermidiate... (answered by richard1234,ewatrrr)
I am suppose to solve the systems of equations by elimination and I don't understand it.... (answered by Fombitz)
I am having problems with systems of linear equations and would like some help explain... (answered by josmiceli)
It is a graph with the ordered pair=(3,3), and the y intercept =-5. I need help to... (answered by MathLover1)
I am suppose to solve the systems of equations (answered by richwmiller)
I am suppose to solve the systems of... (answered by richwmiller)